Retraining to electric fence

The flock of 4 has been sheared and I had hoped the 2 that go between the wires would be retrained to the fence, unfortunately this is not the case. Any hints for teaching respect for the fence?
The problem sheep is very skittish, the only one not hand-manageable.
The fence is hot, I did test it.
Thanks

Hose them down, even slick sheared wool offers some insulation. Make sure no weeds are touching or overgrown under the wire this will draw the current through the plants and not through your sheep. Also hose down the area under the fence wet soil conducts better.